114 results about "Single-Use Device" patented technology

Combinations of microfluidic diagnostic testing modules for simultaneous evaluations of serological and molecular biological targets are provided, and include panel testing for both antibodies (or antigens) and nucleic acid targets in one single-use device. These improvements are directed to evaluating the overall progress and activity of a pathogenic process in real time, at the point of care, not merely the presence or absence of a particular diagnostic marker, which can often be incomplete or misleading.

Presently disclosed is a hydraulic pump device and its use thereof, especially in a fluid delivery system. In one embodiment, the fluid delivery system is an inexpensive, single-use device for slow dosing medicament applications. The fluid delivery system may employ a spring-compressed bellows crank or other combination of simple mechanisms operating according to the well-known peristaltic principle to force a volume of ultrapure bio-inert hydraulic fluid through an aperture, thereby expanding one chamber of a two chamber hydraulic cylinder. The second, fluid storage chamber, containing the medicament, is emptied through a conventional orifice in response to the expansion of the pump chamber. The medicament may thence flow through any suitable infusion set into a patient removeably attached thereto.

A device, which is preferably disc shaped, has two primary layers. A first layer has one side, which is the lower side in use, for adhering to a patient's skin surface, a second, upper layer on the underside of which electrical circuitry is printed or affixed so that the electrical circuitry is sandwiched between the layers. The device can be made in several sizes to accommodate patient size and location of the acupuncture point to be stimulated. Two distinct forms of the device are presented: a single use and a reusable device for. In the single use device, the first, lower layer is preferably a foam with non-conductive adhesive on both sides: the bottom side for adhering to the skin and the top side for adhering to the upper polyester disc. The holes through this lower foam layer include, preferably, eight holes spaced concentrically about one central hole in the middle of the lower foam layer. All these holes are, preferably, overfilled with an electrically conductive gel that projects from the lower foam layer. The conductive circuitry preferably printed on the underside of the upper layer provides a series connection to the gel in each of the eight concentric holes and a separate connection to the gel in the center hole when the upper layer is adhered to the lower layer. The printed circuitry may be a silver/silver chloride polymer film, also provides for a tab(s) which can be permanently or temporarily affixed to an integral or remote simulator through direct contact or wire leads. In the reusable device a pressure-sensitive adhesive material forms the lower layer which allows for multiple applications to a patient's skin. The adhesive lower layer is transparent to show the circular central electrode the annular electrode. The electrodes are preferably silver/silver chloride polymer film. In either configuration, metal core insulated leads can be use for electrical connection with the opposite ends of the leads connected to jacks for connection to an impulse stimulator or can end in electrically conductive tabs.

A portable and disposable device is provided for processing harvested dermal tissue. The device includes a housing presenting a handle having a gripping surface and a cutting head attached to the handle. A cutting assembly is supported by the cutting head and includes a plurality of spaced cutting blades that are rotatable with respect to the housing. A receptacle is disposed downstream of the cutting assembly and receives the sliced tissue from the cutting blades. The device is thus operable to slice harvested tissue into strips, and further into fine particles, that can be used for transplantation onto a wound site.

A disposable set for use with an endoscope is described. The set comprises a dispenser provided with a longitudinal transit passage adapted for passing the endoscope therealong. The dispenser stores a disposable multilumen tubing fitted at a distal end thereof with a cap that is detachably connectable to an optical head of the endoscope. The dispenser is fitted with a protective sleeve adapted to cover the endoscope during the endoscopic procedure. The dispenser is adapted for receiving a lubricant and distributing thereof within the transit passage.

The invention relate to systems and methods for sequencing polynucleotides, as well as detecting reactions and binding events involving other biological molecules. The systems and methods may employ chamber-free devices and nanosensors to detect or characterize such reactions in high-throughput. Because the system in many embodiments is reusable, the system can be subject to more sophisticated and improved engineering, as compared to single use devices.

The invention relates to a manually openable clamping holder (1) for releasably fixing a single-use medical device to a medical treatment apparatus. The clamping holder (1) has a sensor (9) for detecting the position of the clamping jaws (2, 3) of the clamping holder (1). With the clamping holder (1) the correct equipping of a medical treatment apparatus with the appropriate single-use device can be monitored economically and with simple operation.

A UV photocatalytic air purifier/sterilizer in which the multiple limited-lifetime components (such as the UV light, UV light electronics, and catalytic portion) of a photocatalytic UV air purifier/sterilizer are packaged together to form a single, handheld, unitized package, designed for easy insertion and removal into an air purifier. The invention may be configured enable maximum air flow through the photocatalytic portions of the device, thus further improving air cleaning efficiency by allowing many volumes of room air to be recirculated through the device and cleaned/purified/sterilized over the course of a day. In a preferred embodiment, the device may package a series of stacked TiO2 coated parallel metal catalytic plates, a UV germicidal lamp with a fluorescent tube form factor, and a UV lamp ballast into a single disposable or recyclable unit. This disposable unit can be easily clipped into a motorized air purifier unit designed for rapid servicing.

A glucose sensor suitable for measuring glucose levels in human saliva is provided. Systems containing the glucose sensor and methods for making and using the sensor are also provided. The glucose sensor is highly sensitive and can detect glucose levels at least down to 5 ppm. Fabrication of the sensor involves depositing single-walled carbon nanotubes onto the surface of a working electrode in a 3 electrode electrochemical detector and functionalizing the nanotubes by depositing layers of polymers, metallic nanoparticles, and glucose oxidase enzyme onto the nanotubes. The sensor can be used as a disposable, single-use device or as part of an analytical system, such as a microfluidics system, for the analysis of multiple analytes. The sensor enables the diagnosis and monitoring of diabetes to be performed without pain or the need for finger pricks in a home or clinical setting.

The present invention relates to a testing system for assessing hypoxia induced cellular damage in a mammal including human, comprising a disposable device having a sample inlet and a collection chamber separated by a separation device wherein the collection chamber is connected to at least two, a first and a second, visible detection compartments, whereof at least one is arranged with chemical means for direct visual detection, said first detection compartment being arranged to determine whether level of hemoglobin (Hb) in a sample of body fluid taken from said mammal exceeds a predetermined threshold value, and said second detection compartment being arranged to evaluate level of total amount of lactate dehydrogenase (LDH) in said sample.

The invention pertains to a method, apparatus, and system for cutting anatomic members, such as ligaments, in surgical procedures such as carpal tunnel release, plantar fasciotomy, gastroc release, cubital tunnel release, and tarsal tunnel release. The apparatus includes a retrograde knife and a guide tool for guiding the knife and a scope during surgery. Relevant features include a knife stop for preventing the knife from inadvertently raising out of the knife channel, indicators showing the proper orientation for the guide tool, a self dilating tip and channel design on the guide tool, a cover piece and/or pivotable panel system for preventing ligaments and other anatomy from getting caught in the guide tool, a pivot pin and groove system for stabilizing the knife and also assuring that the knife blade is not inadvertently raised out of the channel, and a use indicator for preventing re-use of a single use device.

A disposable device for treatment of infections of human limbs, particularly limbs having long bones susceptible to stabilization by intramedullary nailing. The device includes a tubular member made of a relatively rigid and biologically compatible material, having pores for impregnation with drugs or medicaments for infection treatment prior to or during insertion thereof in the stabilization site. An assembly for treatment of human limb infections including such device.

Described herein is a continuous-flow centrifuge (CFC) which may be embodied in an automated system for collecting and separating whole blood into its components. The collection and separation system includes a console and a disposable set. Various blood processing procedures which produce specific blood products may be implemented by using a specific disposable set for each process. The disposable set may include a manifold, a CFC, and various components attached by tubing. These components may include one or more solution bags, blood product bags, bacterial filters, leukofilters, and a donor blood collection tube with access needle. The manifold and CFC disk may be included in a cassette that mounts onto the front panel of the console. The console may contain valve actuators, pressure transducers, ultrasonic sensors, a roller pump assembly, a CFC drive system, optical sensors, electronics, software, user interface components, a bar code reader and data acquisition components.

The invention relates to disposable device for the continuous centrifugal separation of a physiological fluid. The inventive device comprises: a fixed axial element; a centrifugation chamber which is mounted such that it can rotate around the axis of said element; an inlet channel for the blood to be centrifuged, the dispensing port of which is located close to the base of the chamber; and an outlet passage for a separated constituent, the inlet port of which is located close to the other end of the chamber in a concentrated area of one of the separated constituents having the lowest mass density in order for same to be removed continuously. The above-mentioned chamber takes the form of a long tube. The fixed axial element comprises a second outlet passage for a second of the separated constituents, the inlet port of which is located close to the end of the chamber opposite the above-mentioned base in a concentrated area of said second separated constituent having the highest mass density in order for same to be removed continuously.

Single-use devices for sanitizing accessible surfaces of needleless medical valves at risk of contamination with infectious agents are described, as are methods for making and using such devices.